The Alvin and the Chipmunks reference article from the English Wikipedia on 24-Jul-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Alvin and the Chipmunks

Sponsorship the way you would do it
The Alvin ShowEnlarge

The Alvin Show

The ChipettesEnlarge

The Chipettes

Created by Ross Bagdasarian, Alvin and the Chipmunks have had a lengthy career as animated, singing chipmunks. They were created for a gimmick song, where Bagdasarian's voice was sped up, to sound higher for the "The Chipmunk Song" (also known as "Christmas Don't Be Late").

Collectively known as Alvin and the Chipmunks, Alvin, Simon and Theodore are managed by their human "dad" Dave Seville.

The Chipettes

There is also a female band spun-off Alvin and the Chipmunks, called The Chipettes. They consist of Brittany, Eleanor and Jeanette, managed by Ms. Miller. They are essentially female versions of the Chipmunks.